S
M
T
W
T
F
S
30
101°
71°
31
100°
70°
1
96°
71°
2
99°
72°
3
103°
71°
4
98°
70°
5
97°
70°
6
99°
72°
7
99°
71°
8
100°
70°
9
99°
68°
10
93°
69°
11
93°
68°
12
97°
69°
13
94°
67°
14
90°
65°
15
86°
66°
16
91°
66°
17
90°
65°
18
81°
62°
19
81°
64°
20
85°
63°
21
84°
60°
22
87°
63°
23
83°
63°
24
80°
62°
25
83°
62°
26
79°
55°
27
78°
53°
28
78°
53°
29
79°
54°
30
80°
53°
1
82°
57°
2
85°
58°
3
79°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Roswell
Roswell's September 2026 forecast shows daily high temperatures ranging from 78° to 103°, with overnight lows between 53° and 72°. The average high for September is 89° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Roswell. See also: October | November | December.
